/* ===== 页面专属：隐私政策 (page-privacy) ===== */
.page-privacy {
  --privacy-bg-page: #f5f7fa;
  --privacy-bg-hero: var(--primary-black, #1D3557);
  --privacy-bg-card: #ffffff;
  --privacy-text-body: #1e2a3a;
  --privacy-text-muted: #546e7a;
  --privacy-text-hero: #ffffff;
  --privacy-accent: var(--primary-red, #E63946);
  --privacy-gold: var(--accent-gold, #F4A261);
  --privacy-radius: 8px;
  --privacy-max-width: 960px;
  --privacy-line-body: 1.8;
  display: block;
  background: var(--privacy-bg-page);
  color: var(--privacy-text-body);
  font-family: var(--font-body, "Inter", system-ui, sans-serif);
  font-size: 1rem;
  line-height: var(--privacy-line-body);
  -webkit-font-smoothing: antialiased;
  position: relative;
  overflow-x: hidden;
}

/* ---- 锚点 ---- */
.privacy-anchor {
  display: block;
  height: 0;
  width: 0;
  visibility: hidden;
}

/* ---- 面包屑 ---- */
.privacy-breadcrumb {
  max-width: var(--privacy-max-width);
  margin: 0 auto;
  padding: 1rem 1.25rem 0;
  font-size: 0.8rem;
  color: var(--privacy-text-muted);
  letter-spacing: 0.02em;
}
.privacy-breadcrumb a {
  color: var(--privacy-accent);
  text-decoration: none;
  transition: color 0.2s;
}
.privacy-breadcrumb a:hover {
  color: var(--privacy-gold);
  text-decoration: underline;
}
.privacy-breadcrumb__sep {
  margin: 0 0.5rem;
  color: #90a4ae;
}

/* ---- Hero ---- */
.privacy-hero {
  position: relative;
  max-width: var(--privacy-max-width);
  margin: 0.75rem auto 0;
  border-radius: var(--privacy-radius);
  overflow: hidden;
  background: var(--privacy-bg-hero);
  min-height: 260px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.privacy-hero__img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 30%;
  opacity: 0.2;
  max-width: 100%;
  height: auto;
  display: block;
}
.privacy-hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(13,27,55,0.85) 0%, rgba(13,27,55,0.40) 100%);
  z-index: 1;
}
.privacy-hero__text {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 3rem 1.5rem;
  color: var(--privacy-text-hero);
}
.privacy-hero__title {
  font-family: var(--font-heading, "Oswald", "Impact", sans-serif);
  font-size: clamp(2.2rem, 10vw, 3.8rem);
  font-weight: 700;
  line-height: 1.05;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  margin: 0 0 0.5rem;
  color: #fff;
}
.privacy-hero__subtitle {
  font-size: clamp(1rem, 4vw, 1.35rem);
  font-weight: 400;
  opacity: 0.85;
  margin: 0;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* ---- 装饰斜线（极细纹理） ---- */
.privacy-hero__bg::before {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    -45deg,
    transparent 0px,
    transparent 12px,
    rgba(255,255,255,0.015) 12px,
    rgba(255,255,255,0.015) 13px
  );
  pointer-events: none;
  z-index: 1;
}

/* ---- 介绍段落 ---- */
.privacy-intro {
  max-width: var(--privacy-max-width);
  margin: 0 auto;
  padding: 2rem 1.25rem 1.5rem;
}
.privacy-intro__text {
  font-size: 1rem;
  color: var(--privacy-text-body);
  margin: 0 0 0.4rem;
}
.privacy-intro__text a {
  color: var(--privacy-accent);
  text-decoration: underline;
  text-underline-offset: 2px;
  font-weight: 600;
  transition: color 0.2s;
}
.privacy-intro__text a:hover {
  color: var(--privacy-gold);
}
.privacy-intro__date {
  font-size: 0.8rem;
  color: var(--privacy-text-muted);
  margin: 0;
}

/* ---- 章节容器 ---- */
.privacy-sections {
  max-width: var(--privacy-max-width);
  margin: 0 auto;
  padding: 0 1.25rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

/* ---- 单个章节 ---- */
.privacy-section {
  background: var(--privacy-bg-card);
  border-radius: var(--privacy-radius);
  padding: 1.5rem 1.25rem;
  box-shadow: 0 2px 12px rgba(0,0,0,0.04), 0 1px 3px rgba(0,0,0,0.02);
  transition: box-shadow 0.3s;
}
.privacy-section[data-reveal].is-visible {
  box-shadow: 0 4px 20px rgba(0,0,0,0.06);
}
.privacy-section__header {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 1rem;
  position: relative;
}
.privacy-section__dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--privacy-accent);
  flex-shrink: 0;
  box-shadow: 0 0 0 3px rgba(230,57,70,0.15);
}
.privacy-section__num {
  font-family: var(--font-heading, "Oswald", "Impact", sans-serif);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--privacy-accent);
  letter-spacing: 0.03em;
  line-height: 1;
  margin-right: 0.2rem;
}
.privacy-section__title {
  font-family: var(--font-heading, "Oswald", "Impact", sans-serif);
  font-size: 1.4rem;
  font-weight: 700;
  line-height: 1.15;
  color: var(--privacy-text-body);
  margin: 0;
  text-transform: uppercase;
}
.privacy-section__body {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  padding-left: calc(12px + 0.6rem + 1.1rem + 0.2rem);
}

/* ---- 可展开条款 ---- */
.privacy-detail {
  border-bottom: 1px solid #e9edf2;
  padding: 0.4rem 0;
}
.privacy-detail:last-child {
  border-bottom: none;
}
.privacy-detail__summary {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.25rem 0.4rem;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--privacy-text-body);
  padding: 0.3rem 0;
  transition: color 0.2s;
  user-select: none;
}
.privacy-detail__summary::-webkit-details-marker {
  display: none;
}
.privacy-detail__summary::before {
  content: "▸";
  display: inline-block;
  margin-right: 0.4rem;
  color: var(--privacy-accent);
  transition: transform 0.25s ease;
  font-size: 0.9rem;
}
details[open] > .privacy-detail__summary::before {
  transform: rotate(90deg);
}
.privacy-detail__summary:hover {
  color: var(--privacy-accent);
}
.privacy-detail__accent {
  font-weight: 700;
  color: var(--privacy-gold);
  background: linear-gradient(135deg, rgba(244,162,97,0.08) 0%, rgba(244,162,97,0.02) 100%);
  padding: 0.05em 0.3em;
  border-radius: 3px;
  font-size: 0.85em;
}
.privacy-detail__content {
  padding: 0.6rem 0 0.4rem 1.2rem;
  font-size: 0.92rem;
  color: var(--privacy-text-muted);
  line-height: 1.7;
}
.privacy-detail__content p {
  margin: 0 0 0.4rem;
}
.privacy-detail__content p:last-child {
  margin-bottom: 0;
}

/* ---- 联系区域 ---- */
.privacy-contact {
  max-width: var(--privacy-max-width);
  margin: 0 auto;
  padding: 0 1.25rem 3rem;
}
.privacy-contact__inner {
  background: var(--privacy-bg-hero);
  border-radius: var(--privacy-radius);
  padding: 2rem 1.5rem;
  color: var(--privacy-text-hero);
  position: relative;
  overflow: hidden;
}
.privacy-contact__inner::before {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    -45deg,
    transparent 0px,
    transparent 16px,
    rgba(255,255,255,0.02) 16px,
    rgba(255,255,255,0.02) 17px
  );
  pointer-events: none;
}
.privacy-contact__title {
  font-family: var(--font-heading, "Oswald", "Impact", sans-serif);
  font-size: 1.6rem;
  font-weight: 700;
  text-transform: uppercase;
  margin: 0 0 0.5rem;
  color: #fff;
  position: relative;
  z-index: 1;
}
.privacy-contact__text {
  font-size: 0.95rem;
  opacity: 0.9;
  margin: 0 0 1rem;
  max-width: 600px;
  position: relative;
  z-index: 1;
}
.privacy-contact__text a {
  color: var(--privacy-gold);
  text-decoration: underline;
  text-underline-offset: 2px;
  font-weight: 600;
  transition: color 0.2s;
}
.privacy-contact__text a:hover {
  color: #ffd699;
}
.privacy-contact__list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  font-size: 0.9rem;
  position: relative;
  z-index: 1;
  max-width: 500px;
}
.privacy-contact__label {
  font-weight: 600;
  opacity: 0.75;
  margin-right: 0.3rem;
}

/* ---- 返回顶部 ---- */
.privacy-back-top {
  position: fixed;
  bottom: 1.5rem;
  right: 1.25rem;
  z-index: 100;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--privacy-accent);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 12px rgba(230,57,70,0.3);
  transition: background 0.25s, transform 0.25s, box-shadow 0.25s;
  text-decoration: none;
  opacity: 0.85;
}
.privacy-back-top:hover {
  background: var(--button-hover-bg, #C1272D);
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(230,57,70,0.35);
  opacity: 1;
}
.privacy-back-top svg {
  display: block;
}

/* ---- 移动端优化 ---- */
@media (max-width: 640px) {
  .privacy-hero {
    min-height: 200px;
    margin-left: 0;
    margin-right: 0;
    border-radius: 0;
  }
  .privacy-hero__text {
    padding: 2rem 1rem;
  }
  .privacy-section__body {
    padding-left: 0;
  }
  .privacy-section {
    padding: 1.25rem 1rem;
  }
  .privacy-contact__inner {
    padding: 1.5rem 1.25rem;
  }
  .privacy-back-top {
    bottom: 1rem;
    right: 0.75rem;
    width: 40px;
    height: 40px;
  }
}

/* ---- 桌面端栅格与留白 ---- */
@media (min-width: 768px) {
  .privacy-breadcrumb {
    padding: 1.5rem 0 0;
  }
  .privacy-intro {
    padding: 2.5rem 0 1.5rem;
  }
  .privacy-sections {
    padding: 0 0 2.5rem;
    gap: 2rem;
  }
  .privacy-section {
    padding: 2rem 2rem;
  }
  .privacy-section__title {
    font-size: 1.6rem;
  }
  .privacy-section__body {
    padding-left: calc(12px + 0.6rem + 1.3rem + 0.2rem);
  }
  .privacy-detail__summary {
    font-size: 1rem;
  }
  .privacy-contact {
    padding: 0 0 4rem;
  }
  .privacy-contact__inner {
    padding: 2.5rem 2.5rem;
  }
  .privacy-contact__list {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 0.5rem 2rem;
  }
}

@media (min-width: 1024px) {
  .privacy-hero {
    min-height: 300px;
  }
  .privacy-hero__text {
    padding: 4rem 2rem;
  }
  .privacy-section__header {
    gap: 0.8rem;
  }
  .privacy-section__dot {
    width: 14px;
    height: 14px;
  }
  .privacy-section__num {
    font-size: 1.3rem;
  }
}

/* ---- 减少动效 ---- */
@media (prefers-reduced-motion: reduce) {
  .privacy-section,
  .privacy-back-top {
    transition: none !important;
  }
  .privacy-detail__summary::before {
    transition: none;
  }
  .privacy-back-top:hover {
    transform: none;
  }
}